Freezing-cylinder for ice-machines.



INU. 730,018.y PATLNTLD'JUNE 2, 1903.

' D. L. HOLDEN. Y

FREEZING'GYLINDER POR ICE MACHINES,

APPLIDLTION FILED JULY so. 1901..

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UNITED STATES PatentedlJune 2, 1903.

PATENT OFFICE;

- FREEZlNG-CYLINDERFOR ICE-MACHINES.

EIPECIEICATION formingpart ofvLetters Patent No. 730,018, dated Tune 2, 1903.

Application vfiled July 30, 1901.v .Serial Non 70,225. (No model.)

To a/Z/ zic/wm, it may concern: i

Be it known that I, DANIEL L. HOLDEN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvementsin Freezing- Cylinders for Ice-Machines, of which the following is a specification.

My invention relates to-improvementsin freezing-cylinders for regealed ice-machines,

and has for its object the more perfect and continuous distribution of the anhydrous ammonia to the entire inner circular surface of the freezing-cylinder. When the ammonia is introduced to the cylinder, unless some means is adopted to distribute it to the cylinders whole surface before evaporation takes place its full effect is lost, and hence imperfectresults and the necessity of more frequent reliquefaction,"pumpage, dto. Therefore to overcome this-loss and anonly partial effect have devised means for the liquids longer and greater contact with the cylindersurface'untilit shall befully covered and*v have thus greatly increased the effect pro-, duced over the methods heretofore adopted where only a small portion of the surface was e covered by the liquid.

My invention is illustrated iii-the accompanying drawings, in which- Figure 1 is a central vertical section of the freezing-cylinder', j Fig. 2 a transverse sec-y tion on line X X,'Fig. 1, looking to the right with the retaining-plates as when formed 4in singlev circumferential sections. Fig. 3 is a' transverse section, also'on line XX, Fig. -1,'

shell 1, secured to heads 2 3,'fro1n'which arev trunnions 4 5, by which theV cylinder is supported for rotationfthe tru nnions being j ournaled in bearings 6 7, secured on ends S 9 of the inclosing tank. At one end of the cylinder through its trunnion et is a liquid-ammonia inlet-pipe 10, extending within the cylinder and having a down-tending quarterturn 11. At the opposite end through trunlcured to trunnion 5.

nion 5 is an open discharge-pipe 12, through which the ammonia-gas passes away.

VXVithin the cylindrical shell 1 and closely lying thereto is a lining 14,l which may be of any material having suitable interstice's in its structure wherein the liquid ammonia will be deposited and retained as the shell rotates while it flows in through pipe 10, 'or the lining may be of an absorbent material, spongy in in its nature and adapted to be saturated, and thereby retain the liquid. Interior to lining' 14 are retaining-plates 15,`which may ing-plates 18-are inserted in multiple parts .circumferentially, with a lug-bolt 19 secured to oneedge of each plate, a bracket 2O being secured to the edge of the adjacent plate, a

-hole-therein through which. bolt 19 is passed,-

and nuts 21 screwed on the bolt at either side of bracket20 and by which plates 1S are drawn vtogether or forced apart for the purposeas heretofore explained.

Other means mightbe employed to adjust the platesv and still be Within the scope of my invention. taining-plates have perforations 2O therethrough by which the liquid ammonia Vvpercolates to the lining 14. The cylinder'is rotated by means of the sprocket-wheelj22, se-

' Tap-bolts 23, passing through the retaining-plates and into the cylinder-'shelh secure tlieplates'to the cylinder for rotation therewith or from shifting. An-

nular rings 24C 25 are secured within heads 2 3 to prevent the contact of ammonia with the heads, so that refrigeration may take place only upon .the circumferential surface of the cylinder.

1. In a machine of the character described, a rotatablecylinder, an absorbent lining therein, perforatedv retaining-plates Within the lining and means to increase or to decreasethe diameter of the lining-plates.

2. In a machine of the character described, a rotatable cylinder, an absorbent lining there- The rein, retaining means for the lining` composed of adjacent plates, and means to increase or of circumferential plates, which, at their londecrease the space and thereby the diameter Jitndinal edges are spaced apart and means of the retaining-ring.

to decrease or increase the space and thereby In testimony whereof I affix my signature 5 decrease or increase their diameter. in presence of two witnesses.

-l l Y v n n Il1 oi tlv htr turd ril d I il LL U10 L L a C J 7 DANIFL L. noLDEN.

a rotatable cylinder, a liquid-retaining lining therein7 retaining means for the lining composed oli' rings 0l multiple circumferential .o plates, alongitudinal space between the edges lVitnesses:

LEWIS II. REDNER, R. C. WRIGHT. 

